================ @@ -184,14 +184,30 @@ GetAffectingModuleMaps(const Preprocessor &PP, Module *RootModule) { const SourceManager &SM = PP.getSourceManager(); const ModuleMap &MM = HS.getModuleMap(); - llvm::DenseSet<FileID> ModuleMaps; - - llvm::DenseSet<const Module *> ProcessedModules; - auto CollectModuleMapsForHierarchy = [&](const Module *M) { + // Module maps used only by textual headers are special. Their FileID is + // non-affecting, but their FileEntry is (i.e. must be written as InputFile). + enum AffectedReason : bool { + ARTextualHeader = 0, + ARImportOrTextualHeader = 1, + }; + auto AssignMostImportant = [](AffectedReason &L, AffectedReason R) { + L = std::max(L, R); + }; + llvm::DenseMap<FileID, AffectedReason> ModuleMaps; + llvm::DenseMap<const Module *, AffectedReason> ProcessedModules; + auto CollectModuleMapsForHierarchy = [&](const Module *M, + AffectedReason Reason) { M = M->getTopLevelModule(); - if (!ProcessedModules.insert(M).second) + // We need to process the header either when it was not present of when we ---------------- bricknerb wrote:
```suggestion // We need to process the header either when it was not present or when we ``` https://github.com/llvm/llvm-project/pull/116374 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits